Shoe midsole



FIG. 1 is a front perspective view of a shoe midsole showing my new design;

FIG. 2 is a rear perspective view thereof; and,

FIG. 3 is a side view thereof.

The broken line showing that is immediately adjacent to the top of the shaded area represents an unclaimed boundary of the design. The broken line showing of the remainder of the shoe is for environmental purposes only and forms no part of the claimed design. 

The ornamental design for a shoe midsole, as shown and described. 